Wear sunscreen. “Sunspots” (gasp!), “age spots”, or even worse, “liver spots” are flat, non-raised, brown spots or freckles that develop on the skin after prolonged exposure to direct ultraviolet (or UV) rays. In med-speak, they’re called “solar lentigines”. Contrary to the common-speak, people of all ages are susceptible to these spots, and those with lighter skin tend to develop them more frequently. The most common areas to develop brown spots are those exposed to the sun most often, the face, chest, and hands.